Yes of course, it's well known that it's impossible to code good games that have gameplay on consoles with better gfx capabilities
I think you'll find that there's nothing special about the Wii that means that its titles will automatically have better gameplay than those for other systems. The motion sensing controller is very interesting and seems to have been well implemented but there have been loads of motion sensitive controllers in the past (I have an old MS Sidewinder tilt sensitive joypad for my PC) which haven't exactly changed the world. I'm sure that there will be a few select titles that really benefit from it, in fact are only really made possible by it, but for many it'll be a case of trying to knock a square peg into a round hole for control.
Also still feel £180 is a bit high for the console but guessing instead of a price drop and extra Wii Remote & Nunchuck will be added to the package once sales start to slow down, that would make it much better value! I payed £340 for mine but I'm in Argentina so it was that price or no Wii for me, doubt they'll be much cheaper than that here for a coule of years at least.
However, the WiFi, internet connectivity and virtual console is a good move forward for Nintendo and they have a good reputation for making quality first party titles.
If the price comes down to 150 quid I think they'll have a competitive system on their hands. As it is, 180 is too much for what you get but I can see why they'd want to max their profits at launch given that they can sell every one they make at the moment.
Gav